# 求100以内所有的奇数之和

i = 0
result = 0
# while i < 100 :
for i in range(1, 100, 2):
    # print(i)
    #     i += 1
    #     if i % 2 != 0 :
    result += i
print("result=" + str(result))

# i = 1
# # sum()
# while i < 100 :
#     if i % 2 != 0 :
#         print(i)
#         i += 1
#     else:
